Meriam, Kraige & Bolton — Kinematics of Particles: Problem 2_110

2/110 Rotation of bar \(OA\) is controlled by the lead screw which imparts a horizontal velocity \(v\) to collar \(C\) and causes pin \(P\) to travel along the smooth slot. Determine the values of \(\dot{r}\) and \(\dot{\theta}\), where \(r = OP\), if \(h = 160\text{ mm}\), \(x = 120\text{ mm}\), and \(v = 25\text{ mm/s}\) at the instant represented.